Home / Cubot A40 / Fix Black Screen
How to Fix Black Screen — Cubot A40
How to Fix Black Screen — Cubot A40
The Cubot A40 is a 2025 Android 15 smartphone powered by the Unisoc T606 (12 nm) with 4GB | 8GB and 256GB | 64GB internal storage. It features a 6.9", IPS LCD, 120Hz, 720.0x1640.0 display and is available in Black, Purple, Titan Grey.
The A40 is equipped with a 5100 mAh, a 48 MP, Yes main camera, a 16 MP front camera. The device uses a Nano-SIM + Nano-SIM configuration.
A black screen on the Cubot A40 can occur due to a drained battery, a software crash, or the screen becoming unresponsive. In most cases this can be resolved with a force restart or a short charging period without any data loss. Follow the steps below in order before considering a factory reset.
On your Cubot A40: charge for 30+ minutes with a different cable and charger
Hold Power for 15–20 seconds
If still black: hold Power + Volume Down for 10 seconds
Try holding Power + Volume Up to enter Recovery Mode
In Recovery: select 'Reboot system now'
If Recovery loads: wipe cache partition then reboot
Last resort: factory reset from Recovery — erases all data
Was this guide helpful?